Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Michigan Bedrock Geology: Michigan

2015. State of Michigan. Bedrock geology polygons as digitized from the 1987 Michigan Bedrock Geology map.

2. Bedrock Geology of Iowa

2017. Iowa Geological Survey. Bedrock Geology of Iowa This zip file contains a file geodatabase with the following feature classes: Bedrock Faults Bedrock Geology Bedrock Topogr...

3. Geology: Centre County, Pennsylvania

Centre County Government. Geology layer showing the short and long names of the geologic formation.

4. Quaternary Geology Map: Michigan

2017. State of Michigan. Digital version of Quaternary Geology maps of northern and southern Michigan.More Metadata.

5. Statemap Surficial Geologys: Iowa

2018. Iowa Geological Survey. Surficial Geology of Iowa Each zip file contains a shapefile of the area specified.

6. Bedrock Geology: Indiana

2010. Indiana Geological Survey. BEDROCK_GEOL_MM48_IN is a polygon shapefile that shows bedrock geology of the state of Indiana at a scale of 1:500,000. The mapped stratigraphic un...

7. Bedrock Geology: Illinois, 2005

2005. Illinois State Geological Survey. This feature dataset shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the map Bedrock G...

8. Bedrock Geology: Dublin, Ohio

2015. Ohio Geographically Referenced Information Program. Environmental data around the City of Dublin, OH, USA.

9. Bedrock Geology: Michigan

2015. State of Michigan. Michigan bedrock geologyMore Metadata.

10. Bedrock Geology: Pennsylvania

2001. Pennsylvania Department of Conservation and Natural Resources. Two digital data sets, one for geologic units and faults and the other for dikes, have been prepared for Pennsylvania. The data sets were digitized...

11. Geology - Geologic Formations: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.This file of geologic unit polygons is for educational us...

12. Geology - Hydric Soils: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.This data layer is a compilation of the MUPOLYGON feature...

13. Geology - Physiographic Provinces: Maryland

2016. ArcGIS Online for Maryland. This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov.This data layer contains the Province-level physiographic...

14. Geology: Baltimore County, Maryland

Baltimore County Web Map Portal.

15. Quaternary Geology: Michigan

2015. State of Michigan. Michigan Quaternary GeologyMore Metadata.

16. Statemap Bedrock Geologys: Iowa

2018. Each zip file contains a shapefile of the specified area.

17. Bedrock Geology 500k - Contacts: Ohio

Ohio Geographically Referenced Information Program. This dataset contains the 1:500,000-scale bedrock geology of Ohio. The bedrock geology dataset was originally derived from the 1:24,000-scale bedro...

18. Bedrock Geology 500k - Faults: Ohio

Ohio Geographically Referenced Information Program. This dataset contains the 1:500,000-scale bedrock geology of Ohio. The bedrock geology dataset was originally derived from the 1:24,000-scale bedro...

19. Bedrock Geology 24k - Facies: Ohio

Ohio Geographically Referenced Information Program. This dataset contains the 1:24,000-scale bedrock geology map data for Ohio. The map data were originally derived from the 1:24,000-scale bedrock-ge...

20. Quaternary Geology 500k - Lines: Ohio

Ohio Geographically Referenced Information Program. Since the publication of the Glacial map of Ohio (Goldthwait, White, and Forsyth, 1961, U.S. Geological Survey Miscellaneous Geologic Investigation...